#include<bits/stdc++.h>
using namespace std;
#define rep(i,n) for(int i=1;i<=n;i++)
#define rept(i,n) for(int i=0;i<n;i++)

int main(){
    freopen("arena.in","r",stdin);
    freopen("arena.out","w",stdout);



    fclose(stdin);
    fclose(stdout);
    return 0;
}
